Creating multi buffer

EnriqueIbarra

I'm using GeometryService to create buffers, I did a query over a Feature Layer in a map service and obtained a collection of features, now a need to draw buffers over these points, but apper that GeometryService don't support make more than once at time, have somebody did it? or ther's another way to make it possible?

The QueryTask

void queryTask_ExecuteCompleted(object sender, QueryEventArgs e)
        {
            foreach (Graphic item in e.FeatureSet.Features)
            {
                Graphic queryGraphic = new Graphic();
                ESRI.ArcGIS.Client.Geometry.MapPoint mapPnt = new MapPoint(item.Geometry.Extent.XMax, item.Geometry.Extent.YMax);
                queryGraphic.Geometry = ESRI.ArcGIS.Client.Bing.Transform.GeographicToWebMercator(mapPnt);
               
                queryGraphic.Geometry.SpatialReference = sReference;

                BufferParameters bufferParams = new BufferParameters()
                {
                    BufferSpatialReference = new SpatialReference(102100),
                    OutSpatialReference = MapaGM.SpatialReference,
                    Unit = LinearUnit.Meter,
                };

                bufferParams.Distances.Add(1000);
                bufferParams.Features.Add(queryGraphic);
                geometryService.BufferAsync(bufferParams);
            }         
        }

And the GeometryService

void geometryService_BufferCompleted(object sender, GraphicsEventArgs e)
        {
            Graphic bufferGraphic = new Graphic();
            bufferGraphic.Geometry = e.Results[0].Geometry;
            bufferGraphic.Symbol = LayoutRoot.Resources["BufferSymbol"] as Symbol;
            bufferGraphic.SetZIndex(1);
            pointAndBufferGraphicsLayer.Graphics.Add(bufferGraphic);
        }

EnriqueIbarra

You should be able to pass all the features returned from the QueryTask to the Buffer.  The code below works for me

Thanks Terry
well, I used this refference and it works!
http://resources.esri.com/help/9.3/arcgisserver/apis/silverlight/help/Geometry_task.htm